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Wątpliwości dotyczące nośności stropu z płyt kanałowych obciążonego siłą skupioną

Identyfikatory
Warianty tytułu
EN
Doubts about capacity of hollow core slab field subjected to point loading
Języki publikacji
PL
Abstrakty
PL
W pracy przedstawiono wybrane aspekty projektowania stropów z płyt HC, obciążonych siłą skupioną, w świetle obowiązującej normy EN 1168 oraz licznych publikacji. Przeprowadzono analizę porównawczą, w której obliczeniową nośność płyty porównano z wybranymi badaniami eksperymentalnymi takich stropów, przeprowadzonymi w Fińskim Instytucie Technicznym. Wykazano wiele niejasności i wątpliwości co do sposobu obliczania elementów pracujących w złożonym stanie naprężenia, które wciąż wymagają naukowego wyjaśnienia.
EN
The article presents selected aspects related to the design of hollow core slab units that are able to distribute concentrated loading to adjacent slabs. Provisions of EN 1168 as well as literature are presented and discussed. A comparative analysis has been performed in which calculated capacity of a slab has been compared to selected experimental results obtained from slab field tests done in Technical Research Centre of Finland. The outcome of analysis illustrated various ambiguities and questions that correspond to the state of the art knowledge regarding the considered subject.
Rocznik
Strony
263--268
Opis fizyczny
Bibliogr. 30 poz., il., tab.
Twórcy
  • Consolis Technology Development Centre
  • IPHA Holcolodis
  • Politechnika Krakowska
  • Linnaeus Univesity Växjö, Sweden
Bibliografia
  • [1] EN 1168:2005+A3:2011 Precast concrete products - Hollow core slabs, 2011.
  • [2] Acker A.V.: Transversal distribution of linear loadings in prestressed hollow core floors, FIP Symposium, Calgary, 30 & 31 August, 1984.
  • [3] PCI, Manual for the Design of Hollow Core Slabs and Walls - Third Edition, 2015.
  • [4] Stanton J.F.: Response of Hollow-Core Slab Floors to Concentrated Loads, PCI Journal, tom 37, nr 4, pp. 98-113, 1992.
  • [5] Elliot D. a. B.: Precast Floor Slab Diaphragms Without Structural Screeds, w Concrete 2000 - Economic and Durable Construction Through Excellence, Dundee, September 1993.
  • [6] Eurocode 2: Design of Concrete Structures - Part 1-1: General rules and rules for buildings. EN 1992-1-1:2004, Brussels, 2004.
  • [7] Pajari M.: Web shear failure in prestressed hollow core slabs, Journal of Structural Mechanics, tom 42, nr 4, pp. 297-217, 2009.
  • [8] Pajari M.: Resistance of prestressed hollow core slabs against web shear failure, VTT, Espoo, 2005.
  • [9] Emanuele B., Roberto N.: Evaluation of the shear capacity of precast-prestressed hollow core slabs: Numerical and experimental comparisons, Materials and Structures, tom 48, pp. 1503-1521, April 2015.
  • [10] Pajari M.: Pure torsion tests on single hollow core slabs, VTT Research Notes 2273, Espoo, 2004.
  • [11] Pajari M.: Shear-torsion interaction tests on single hollow core slabs, VTT Research Notes 2275, Espoo, 2004.
  • [12] Pajari M.: Shear-torsion tests on 200 mm hollow core floor, VTT, Espoo, 2004.
  • [13] Pajari M.: Shear-torsion tests on 400 mm hollow core floor, VTT, Espoo, 2004.
  • [14] Broo H.: Shear and Torsion in Concrete Structures. Non-Linear Finite Element Analysis in Design and Assessment, Göteborg: Chalmers Universtiy of Technology, 2008.
  • [15] Derkowski W., Surma M.: Complex stress state in prestressed hollow core slabs, Monografia, tom 478, pp. 11-27,2015.
  • [16] Derkowski W., Surma M.: Torsion of precast hollow core slabs, Budownictwo, Tomy %1 z %23-B, pp. 32-43, 2015.
  • [17] fib, Bulletin 65, Model Code for Concrete Structures 2010, Lausanne, Switzerland: fib, 2012.
  • [18] Elfgren L.: Reinforced Concrete Beams Loaded in Combined Torsion, Bending and Shear. A study of the ultimate load-carrying capacity, Göteborg: Chalmers University of Technology, 1972.
  • [19] Hsu T., Mo Y.: Unified Theory of Concrete Structures, John Wiley & Sons, Ltd, 2010.
  • [20] Gabrielsson H.: Ductility in High Performance Concrete Structures. An Experimental Investigation and a Theoretical Study of Prestressed Hollow Core Slabs and Prestressed Cylindrical Pole Elements, Luleå University of Technology, 1999.
  • [21] Canadian Standards Association, Design of concrete structures for buildings, Rexdale, Ontario, 1994.
  • [22] Azizov T.: Effect of torsional rigidity of concrete elements with normal cracks onto spacial work of bridges and floorings, The Advanced Science Journal, tom Volume 2010, nr 3,2010.
  • [23] Azizov T., Derkowski W., Jurkowska N.: Consideration of the Torsional Stiffness in Hollow-Core Slabs' Design, Materials Science Forum, tom 968, pp. 330-341, 2019.
  • [24] Aswad A., Jacques F.J.: Behavior of Hollow-Core Slabs Subjected to Edge Loads, PCI Journal, tom 37, nr 2, pp. 72-83, March-April 1992.
  • [25] Pisanty A.: Transverse flexural and torsional strength of Prestressed Precast Hollow-Core Slabs, Tailor Made Concrete Structures - Walraven & Stoelhorst, pp. 527-531, 2008.
  • [26] den Uijl I.J.: Resistance against vertical shear loading of longitudinal joints between prestressed hollow core slabs, Delft University of Technology, Delft, 1992.
  • [27] VTT Technical Research Center of Finland, “RAT12538/91 - The performance of point-loading tests on deck consisting of six Variax 4 slabs”, Espoo, 1991.
  • [28] VTT Technical Research Center of Finland, "RAT12503/91 Variax 4-laataston pistekuormakokeet," Espoo, 1991.
  • [29] Parkkinen J. T.I.: Analysis of Hollow Core Slab Deck with a Point Load, w International Extruded Concrete Association 6th Annual Conference, Gibraltar, 26-28th of April 1991.
  • [30] Bernardi P., Cerioni R., Leurini F., Michelini E.: A design method for the prediction of load distribution in hollow-core floors, Engineering Structures, tom 123, pp. 473-481, 2016.
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d8e8d432-91a2-4ac4-90fa-85598e3ad954
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